Given details of purified water, need confirmation from experts if TDS level is right for consumption ?

Dear Sir,

I purchased an Aquaguard Noao RO system just a few day before and the technician installed it in my absence. So, how do I know if the TDS level of my RO system is set right? I am a lab technician and I am personally analyzed the RO purified water and it found that

• Chloride is present
• pH is 7.42
• Sulphate is absent 
• Hardness of water as CaCo3 is 45.1 mg/L

So sir kindly suggest if my RO system is function good/better/best.

Thanks,

Anil Kumar Jha